CURREX RUNPRO insoles have flexible support with just the right level of rigidity. It&';s no surprise that experienced runners in a blind study at the German Sport University Cologne chose RUNPRO for comfort. No running shoe is complete without CURREX RUNPRO. Sensational comfort. Optimized motion. Enhanced stability. It all adds up to greater confidence and improved performance step after step and mile after mile. Dominate any distance with RUNPRO Insoles. Engineered to keep you running. Activities: Running Triathlon Walking Benefits of Runpro: Deep Decoupled Heel Cup For perfect fit, wrap and lock. Bamboo Mid Layer For moisture wicking and charcoal to reduce odor. PORON Heel Cushion For rebound and shock absorption. 3D Dynamic Arch For anatomic support, dynamic stability and for less fatigue. PROPO+ For maximum rebound and powerful propulsion.